oj.uz

Submission #572556

# Submission time Handle Problem Language Result Execution time Memory
572556 2022-06-04T17:07:08 Z MadokaMagicaFan Arranging Shoes (IOI19_shoes) C++14
100 / 100
 160 ms 139404 KB 
    #include "bits/stdc++.h"
     
    using namespace std;
     
    using ll = long long;
    const ll inf = 1e9;
    const int md1 = 1e9+7;
    const int md2 = 998244353;
     
    #define all(v)                      v.begin(), v.end()
    #define rall(v)                     v.rbegin(), v.rend()
    #define sz(v)                       ((int)v.size())
     
    #define forn(i,n)                   for(int i = 0; i < n; ++i)
    #define forbe(i,b,e)                for(int i = b; i < e; ++i)
     
    #define pb                          push_back
     
    #define pry                         puts("YES")
    #define prn                         puts("NO")
    #define endl                        '\n'
     
    #define fst                         first
    #define scn                         second
     
    const int N = 1e5;
     
    bitset<2*N> c;
     
    queue<int> pp[N+1];
    queue<int> np[N+1];
     
    template<typename T>
    struct BIT{
        int n;
        vector<T> fen;
        BIT(int n){
            this->n = n;
            fen.assign(n,0);
        }
        BIT(vector<T> a) : BIT(a.size()){
            for(int i = 0; i < n; ++i) add(i,a[i]);
        }
        void add(int x, T v){
            for(; x < n; x |= x+1) fen[x] += v;
        }
        T query(int x){
            T res = 0;
            for(; x >= 0; x = (x&(x+1))-1)
                res += fen[x];
            return res;
        }
        T query(int l, int r){
            return query(r) - query(l-1);
        }
    };
     
    ll
    count_swaps(vector<int> s)
    {
        ll ans = 0;
        for (int i = 0; i < sz(s); ++i) {
            if (s[i] > 0) pp[s[i]].push(i);
            if (s[i] < 0) np[-s[i]].push(i);
        }
     
        BIT<int> deltr(sz(s)+5);
     
        int pos;
     
        for (int i = 0; i < sz(s); ++i) {
            if (c[i]) {
                continue;
            }
            if (s[i] > 0) {
                pos = np[s[i]].front();
                ans += pos - deltr.query(i,pos) - i;
                c[pos] = 1;
                deltr.add(pos,1);
            } else {
                pos = pp[-s[i]].front() ;
                ans += pos - deltr.query(i,pos) - 1 - i;
                c[pos] = 1;
                deltr.add(pos,1);
            }
            np[abs(s[i])].pop();
            pp[abs(s[i])].pop();
        }
     
        return ans;
    }
     
    #ifdef ONPC
    void
    solve()
    {
        int n;
        cin >> n;
        vector<int> s(n);
        for (int i = 0; i < n; ++i)
            cin >> s[i];
        
        cout <<count_swaps(s) << endl;
    }
     
    int32_t
    main()
    {
        freopen("in", "r", stdin);
        int t = 1;
        /* cin >> t; */
        while(t--)
            solve();
    }
    #endif

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 85 ms 134824 KB Output is correct
2 Correct 84 ms 134840 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 85 ms 134824 KB Output is correct
2 Correct 84 ms 134840 KB Output is correct
3 Correct 84 ms 134860 KB Output is correct
4 Correct 80 ms 134868 KB Output is correct
5 Correct 78 ms 134888 KB Output is correct
6 Correct 80 ms 134868 KB Output is correct
7 Correct 87 ms 134836 KB Output is correct
8 Correct 85 ms 134840 KB Output is correct
9 Correct 88 ms 134844 KB Output is correct
10 Correct 80 ms 134832 KB Output is correct
11 Correct 81 ms 134932 KB Output is correct
12 Correct 79 ms 134928 KB Output is correct
13 Correct 87 ms 134880 KB Output is correct
14 Correct 85 ms 134816 KB Output is correct
15 Correct 81 ms 134892 KB Output is correct
16 Correct 85 ms 134876 KB Output is correct
17 Correct 83 ms 134836 KB Output is correct
18 Correct 95 ms 134828 KB Output is correct
19 Correct 92 ms 134896 KB Output is correct
20 Correct 93 ms 134876 KB Output is correct
21 Correct 81 ms 134860 KB Output is correct
22 Correct 84 ms 134856 KB Output is correct
23 Correct 81 ms 134808 KB Output is correct
24 Correct 85 ms 134896 KB Output is correct
25 Correct 92 ms 134856 KB Output is correct
26 Correct 93 ms 134828 KB Output is correct
27 Correct 94 ms 134860 KB Output is correct
28 Correct 83 ms 134836 KB Output is correct
29 Correct 83 ms 134868 KB Output is correct
30 Correct 81 ms 134824 KB Output is correct
31 Correct 89 ms 134888 KB Output is correct
32 Correct 83 ms 134844 KB Output is correct
33 Correct 85 ms 134896 KB Output is correct
34 Correct 86 ms 134892 KB Output is correct
35 Correct 83 ms 134848 KB Output is correct
36 Correct 81 ms 134912 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 85 ms 134824 KB Output is correct
2 Correct 84 ms 134840 KB Output is correct
3 Correct 86 ms 134880 KB Output is correct
4 Correct 82 ms 134876 KB Output is correct
5 Correct 82 ms 134828 KB Output is correct
6 Correct 81 ms 134896 KB Output is correct
7 Correct 85 ms 134856 KB Output is correct
8 Correct 83 ms 134880 KB Output is correct
9 Correct 81 ms 134864 KB Output is correct
10 Correct 82 ms 134908 KB Output is correct
11 Correct 83 ms 134804 KB Output is correct
12 Correct 88 ms 134928 KB Output is correct
13 Correct 93 ms 134924 KB Output is correct
14 Correct 90 ms 134836 KB Output is correct
15 Correct 81 ms 134928 KB Output is correct
16 Correct 87 ms 134936 KB Output is correct
17 Correct 91 ms 134880 KB Output is correct
18 Correct 96 ms 134860 KB Output is correct
19 Correct 93 ms 134860 KB Output is correct
20 Correct 91 ms 135224 KB Output is correct
21 Correct 91 ms 135372 KB Output is correct
22 Correct 129 ms 139400 KB Output is correct
23 Correct 118 ms 139404 KB Output is correct
24 Correct 124 ms 139316 KB Output is correct
25 Correct 118 ms 139164 KB Output is correct
26 Correct 119 ms 139312 KB Output is correct
27 Correct 118 ms 139184 KB Output is correct
28 Correct 119 ms 139316 KB Output is correct
29 Correct 115 ms 139384 KB Output is correct
30 Correct 118 ms 139296 KB Output is correct
31 Correct 115 ms 139328 KB Output is correct
32 Correct 114 ms 139344 KB Output is correct
33 Correct 116 ms 139140 KB Output is correct
34 Correct 121 ms 139392 KB Output is correct
35 Correct 86 ms 134860 KB Output is correct
36 Correct 82 ms 134832 KB Output is correct
37 Correct 116 ms 139396 KB Output is correct
38 Correct 135 ms 139280 KB Output is correct
39 Correct 131 ms 139380 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 82 ms 135000 KB Output is correct
2 Correct 81 ms 134856 KB Output is correct
3 Correct 97 ms 134928 KB Output is correct
4 Correct 83 ms 134864 KB Output is correct
5 Correct 148 ms 137252 KB Output is correct
6 Correct 120 ms 138460 KB Output is correct
7 Correct 155 ms 138504 KB Output is correct
8 Correct 119 ms 139372 KB Output is correct
9 Correct 149 ms 138484 KB Output is correct
10 Correct 160 ms 138556 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 85 ms 134824 KB Output is correct
2 Correct 84 ms 134840 KB Output is correct
3 Correct 84 ms 134860 KB Output is correct
4 Correct 80 ms 134868 KB Output is correct
5 Correct 78 ms 134888 KB Output is correct
6 Correct 80 ms 134868 KB Output is correct
7 Correct 87 ms 134836 KB Output is correct
8 Correct 85 ms 134840 KB Output is correct
9 Correct 88 ms 134844 KB Output is correct
10 Correct 80 ms 134832 KB Output is correct
11 Correct 81 ms 134932 KB Output is correct
12 Correct 79 ms 134928 KB Output is correct
13 Correct 87 ms 134880 KB Output is correct
14 Correct 85 ms 134816 KB Output is correct
15 Correct 81 ms 134892 KB Output is correct
16 Correct 85 ms 134876 KB Output is correct
17 Correct 83 ms 134836 KB Output is correct
18 Correct 95 ms 134828 KB Output is correct
19 Correct 92 ms 134896 KB Output is correct
20 Correct 93 ms 134876 KB Output is correct
21 Correct 81 ms 134860 KB Output is correct
22 Correct 84 ms 134856 KB Output is correct
23 Correct 81 ms 134808 KB Output is correct
24 Correct 85 ms 134896 KB Output is correct
25 Correct 92 ms 134856 KB Output is correct
26 Correct 93 ms 134828 KB Output is correct
27 Correct 94 ms 134860 KB Output is correct
28 Correct 83 ms 134836 KB Output is correct
29 Correct 83 ms 134868 KB Output is correct
30 Correct 81 ms 134824 KB Output is correct
31 Correct 89 ms 134888 KB Output is correct
32 Correct 83 ms 134844 KB Output is correct
33 Correct 85 ms 134896 KB Output is correct
34 Correct 86 ms 134892 KB Output is correct
35 Correct 83 ms 134848 KB Output is correct
36 Correct 81 ms 134912 KB Output is correct
37 Correct 82 ms 134932 KB Output is correct
38 Correct 85 ms 134876 KB Output is correct
39 Correct 84 ms 134860 KB Output is correct
40 Correct 82 ms 134832 KB Output is correct
41 Correct 83 ms 134940 KB Output is correct
42 Correct 84 ms 134936 KB Output is correct
43 Correct 83 ms 134928 KB Output is correct
44 Correct 83 ms 134924 KB Output is correct
45 Correct 83 ms 134924 KB Output is correct
46 Correct 87 ms 134912 KB Output is correct
47 Correct 86 ms 134976 KB Output is correct
48 Correct 82 ms 134952 KB Output is correct
49 Correct 82 ms 134860 KB Output is correct
50 Correct 93 ms 134896 KB Output is correct
51 Correct 83 ms 134940 KB Output is correct
52 Correct 81 ms 134860 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 85 ms 134824 KB Output is correct
2 Correct 84 ms 134840 KB Output is correct
3 Correct 84 ms 134860 KB Output is correct
4 Correct 80 ms 134868 KB Output is correct
5 Correct 78 ms 134888 KB Output is correct
6 Correct 80 ms 134868 KB Output is correct
7 Correct 87 ms 134836 KB Output is correct
8 Correct 85 ms 134840 KB Output is correct
9 Correct 88 ms 134844 KB Output is correct
10 Correct 80 ms 134832 KB Output is correct
11 Correct 81 ms 134932 KB Output is correct
12 Correct 79 ms 134928 KB Output is correct
13 Correct 87 ms 134880 KB Output is correct
14 Correct 85 ms 134816 KB Output is correct
15 Correct 81 ms 134892 KB Output is correct
16 Correct 85 ms 134876 KB Output is correct
17 Correct 83 ms 134836 KB Output is correct
18 Correct 95 ms 134828 KB Output is correct
19 Correct 92 ms 134896 KB Output is correct
20 Correct 93 ms 134876 KB Output is correct
21 Correct 81 ms 134860 KB Output is correct
22 Correct 84 ms 134856 KB Output is correct
23 Correct 81 ms 134808 KB Output is correct
24 Correct 85 ms 134896 KB Output is correct
25 Correct 92 ms 134856 KB Output is correct
26 Correct 93 ms 134828 KB Output is correct
27 Correct 94 ms 134860 KB Output is correct
28 Correct 83 ms 134836 KB Output is correct
29 Correct 83 ms 134868 KB Output is correct
30 Correct 81 ms 134824 KB Output is correct
31 Correct 89 ms 134888 KB Output is correct
32 Correct 83 ms 134844 KB Output is correct
33 Correct 85 ms 134896 KB Output is correct
34 Correct 86 ms 134892 KB Output is correct
35 Correct 83 ms 134848 KB Output is correct
36 Correct 81 ms 134912 KB Output is correct
37 Correct 86 ms 134880 KB Output is correct
38 Correct 82 ms 134876 KB Output is correct
39 Correct 82 ms 134828 KB Output is correct
40 Correct 81 ms 134896 KB Output is correct
41 Correct 85 ms 134856 KB Output is correct
42 Correct 83 ms 134880 KB Output is correct
43 Correct 81 ms 134864 KB Output is correct
44 Correct 82 ms 134908 KB Output is correct
45 Correct 83 ms 134804 KB Output is correct
46 Correct 88 ms 134928 KB Output is correct
47 Correct 93 ms 134924 KB Output is correct
48 Correct 90 ms 134836 KB Output is correct
49 Correct 81 ms 134928 KB Output is correct
50 Correct 87 ms 134936 KB Output is correct
51 Correct 91 ms 134880 KB Output is correct
52 Correct 96 ms 134860 KB Output is correct
53 Correct 93 ms 134860 KB Output is correct
54 Correct 91 ms 135224 KB Output is correct
55 Correct 91 ms 135372 KB Output is correct
56 Correct 129 ms 139400 KB Output is correct
57 Correct 118 ms 139404 KB Output is correct
58 Correct 124 ms 139316 KB Output is correct
59 Correct 118 ms 139164 KB Output is correct
60 Correct 119 ms 139312 KB Output is correct
61 Correct 118 ms 139184 KB Output is correct
62 Correct 119 ms 139316 KB Output is correct
63 Correct 115 ms 139384 KB Output is correct
64 Correct 118 ms 139296 KB Output is correct
65 Correct 115 ms 139328 KB Output is correct
66 Correct 114 ms 139344 KB Output is correct
67 Correct 116 ms 139140 KB Output is correct
68 Correct 121 ms 139392 KB Output is correct
69 Correct 86 ms 134860 KB Output is correct
70 Correct 82 ms 134832 KB Output is correct
71 Correct 116 ms 139396 KB Output is correct
72 Correct 135 ms 139280 KB Output is correct
73 Correct 131 ms 139380 KB Output is correct
74 Correct 82 ms 135000 KB Output is correct
75 Correct 81 ms 134856 KB Output is correct
76 Correct 97 ms 134928 KB Output is correct
77 Correct 83 ms 134864 KB Output is correct
78 Correct 148 ms 137252 KB Output is correct
79 Correct 120 ms 138460 KB Output is correct
80 Correct 155 ms 138504 KB Output is correct
81 Correct 119 ms 139372 KB Output is correct
82 Correct 149 ms 138484 KB Output is correct
83 Correct 160 ms 138556 KB Output is correct
84 Correct 82 ms 134932 KB Output is correct
85 Correct 85 ms 134876 KB Output is correct
86 Correct 84 ms 134860 KB Output is correct
87 Correct 82 ms 134832 KB Output is correct
88 Correct 83 ms 134940 KB Output is correct
89 Correct 84 ms 134936 KB Output is correct
90 Correct 83 ms 134928 KB Output is correct
91 Correct 83 ms 134924 KB Output is correct
92 Correct 83 ms 134924 KB Output is correct
93 Correct 87 ms 134912 KB Output is correct
94 Correct 86 ms 134976 KB Output is correct
95 Correct 82 ms 134952 KB Output is correct
96 Correct 82 ms 134860 KB Output is correct
97 Correct 93 ms 134896 KB Output is correct
98 Correct 83 ms 134940 KB Output is correct
99 Correct 81 ms 134860 KB Output is correct
100 Correct 82 ms 134888 KB Output is correct
101 Correct 86 ms 135244 KB Output is correct
102 Correct 90 ms 135192 KB Output is correct
103 Correct 158 ms 138556 KB Output is correct
104 Correct 150 ms 138556 KB Output is correct
105 Correct 149 ms 138568 KB Output is correct
106 Correct 145 ms 138620 KB Output is correct
107 Correct 131 ms 138556 KB Output is correct
108 Correct 141 ms 138512 KB Output is correct
109 Correct 121 ms 139400 KB Output is correct
110 Correct 115 ms 139292 KB Output is correct
111 Correct 144 ms 138552 KB Output is correct
112 Correct 156 ms 138564 KB Output is correct
113 Correct 125 ms 138444 KB Output is correct
114 Correct 147 ms 138444 KB Output is correct
115 Correct 152 ms 138552 KB Output is correct